This list is certainly not a complete list of symptoms — other feelings have been associated with social anxiety as well.
Individuals with social anxiety disorder sometimes underachieve at school or at work in order to avoid the attention of being promoted or having to participate in group tasks. In severe or chronic (long-term) cases of social anxiety the person may develop other psychological conditions, such as depression.
People with social anxiety disorder know that their anxiety is irrational and does not make “head” (i.e., cognitive) sense. Nevertheless, “knowing” something is not the same thing as “believing” and “feeling” something. Thus, for people with social anxiety, thoughts and feelings of anxiety persist and show no signs of going away — despite the fact that socially-anxious people “face their fears” every day of their lives.
Only the appropriate therapy works to alleviate social anxiety disorder, the largest anxiety disorder, and the one that few people know anything about.